body {
    box-sizing: border-box;
    background:black; margin: 0px;
    color: white;
    overflow: hidden;
    font-family: 'Roboto Mono', monospace;
    user-select: none;
}

#panel {
    width: 200px;
    position: fixed;
    background: rgba(0, 0, 0, 0.5);
}

#panel summary {
    padding: 8px;
}

#cards {
    overflow: auto;
    height: 95vh;
}

.card {
    padding: 4px;
    margin: 8px;
    border: 1px solid grey;
    border-radius: 5px;
    font-size: 14px;
}

#panel img {
    max-width: 100%;
}

#demo {
  width: 100%; height:100vh;
}

#c {
    width: 100%; height:100%;
    background:black;
    touch-action: none;
}

#gui { 
    position: fixed; bottom:0px; right:50px
}
#buttons {
    position:fixed; bottom:10px; right:10px;
}
button{
    appearance: none;
    min-width:48px; 
    height: 40px;
    margin: 8px;
    font-size: 24px;
    background-color: rgba(0, 0, 0, .5);
    color: white;
    border: none;
    text-align: center;
    text-decoration: none;
    display: block;
    cursor: pointer;
}
button:hover {
    background-color: rgba(80, 80, 80, 0.8);
}
#buttons a {
    text-decoration: none;
    color: white;
}
#aboutButton {
    position:fixed; top:10px; right:10px;

}
a {
    color: aquamarine;
}

#about {
    width: 90%;
    max-width: 400px;
    background-color: rgba(80, 80, 80, 0.9);
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    padding: 8px;
    border-radius: 8px;
    user-select: text;
}
  